/Engine/Source/Runtime/UMG/Public/Blueprint/WidgetTree.h
Constructs the widget, and adds it to the tree.
template<typename WidgetT> WidgetT * ConstructWidget ( [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [UWidget](API\Runtime\UMG\Components\UWidget) > WidgetClass, [FName](API\Runtime\Core\UObject\FName) WidgetName )